Sensitivity enhancement of silver-based SPR sensors using ultrathin gold film and graphene overlay. - Igor José Carvalho de Lima Queiroz; Arthur Aprígio de Melo; Filipe Petrônio Mendonça Fernandes; Fabiana de Carvalho Fim; Steve Blair; Yunshan Wang; Cleumar da Silva Moreira; Rossana Moreno Santa Cruz (I2MTC, 2020)